CN105050518A - Bone screw and self-retaining driver - Google Patents

Bone screw and self-retaining driver Download PDF

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Publication number
CN105050518A
CN105050518A CN201380018832.XA CN201380018832A CN105050518A CN 105050518 A CN105050518 A CN 105050518A CN 201380018832 A CN201380018832 A CN 201380018832A CN 105050518 A CN105050518 A CN 105050518A
Authority
CN
China
Prior art keywords
bone screw
bottle opener
interior axle
outer shaft
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201380018832.XA
Other languages
Chinese (zh)
Other versions
CN105050518B (en
Inventor
S.桑坦格洛
J.怀曼
N.J.埃特林顿
帕斯卡尔·布瓦洛
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Smith and Nephew Inc
Original Assignee
Smith and Nephew Richards Inc
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Filing date
Publication date
Application filed by Smith and Nephew Richards Inc filed Critical Smith and Nephew Richards Inc
Publication of CN105050518A publication Critical patent/CN105050518A/en
Application granted granted Critical
Publication of CN105050518B publication Critical patent/CN105050518B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • A61B17/8605Heads, i.e. proximal ends projecting from bone
    • A61B17/861Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
    • A61B17/8615Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the central region of the screw head
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • A61B17/8605Heads, i.e. proximal ends projecting from bone
    • A61B17/861Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
    • A61B17/862Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the periphery of the screw head
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • A61B17/864Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8875Screwdrivers, spanners or wrenches
    • A61B17/8877Screwdrivers, spanners or wrenches characterised by the cross-section of the driver bit
    • A61B17/8883Screwdrivers, spanners or wrenches characterised by the cross-section of the driver bit the driver bit acting on the periphery of the screw head
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8875Screwdrivers, spanners or wrenches
    • A61B17/8886Screwdrivers, spanners or wrenches holding the screw head
    • A61B17/8888Screwdrivers, spanners or wrenches holding the screw head at its central region
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8897Guide wires or guide pins
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00367Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
    • A61B2017/00389Button or wheel for performing multiple functions, e.g. rotation of shaft and end effector
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0042Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping

Abstract

Techniques disclosed herein include systems and methods for a bone screw and self-retaining driver. The system includes a mechanism that enables a bone screw to be rigidly attached to a screwdriver for manipulation and transfer of bone fragments and grafts to a fixation site, such as during surgery. The system includes a cannulated bone screw that has a drive connection that engages with a drive structures of a screwdriver. The bone screw also includes a structural connector that securely attaches to or receives an internal shaft or rod of the screwdriver. The internal shaft or rod of the screwdriver can rotate and slide independent of an outer shaft of screwdriver. Accordingly, the internal shaft of the screwdriver can rigidly connect with the bone screw enabling applied torque to the screwdriver to be transferred to the bone screw, without the bone screw falling off of the drive connection.

Description

Bone screw and automatically fixing bottle opener
Technical field
Present disclosure relates to for comprising instrument in the surgical operation of arthroscopic surgery and method.
Background technology
Conventional bolt or fastener driving gear are provided in the different modes being kept screw in place time in screw-driven to work materials such as wall, timber, bone etc.Some bottle openers comprise the mechanism relative to driver head retaining screw.But conventional automatic fixing bone screw bottle opener does not typically have active engagement mechanism.Most of bottle opener has passive fixing structure, and it can cause removing with the accident of bottle opener engaging.Such as, the conventional screwdriver of a type comprises magnetization screwdriver head, during installation corresponding metallic screw is held in this head.Although magnetization screwdriver head can keep screw and bottle opener axle conllinear at first, screwdriver head may have more weak maintenance power.As a result, time on the head that uneven power is applied to screw, screw can easily tilt to undesirable angle, and even removes with bottle opener and engage.Other passive fixing structure can have the defect identical with magnetization screwdriver head, because there is sizable releasing to engage probability.At surgery, passive engaging mechanism have sizable releasing engage risk due to bone screw can surgical site lose but unacceptable.The bottle opener with initiatively fixing structure also has defect.Initiatively fixing structure can be heaviness, uses the screw/screwdriver of wider diameter, need excessive power to engage/remove joint, or there is other defect.Therefore, required is a kind of automatic fixing bone screw bottle opener using compact and easy-to-use active engagement mechanism.
Summary of the invention
Technology disclosed herein comprises novel bone screw and automatic fixing driver systems and method.Bone screw and automatic fixing bottle opener embodiment comprise screw and screwdriver system.Screwdriver system has two axles.An axle is outer shaft, and it is tubulose, and has dress and be fixed in the near-end of handle and limit the far-end of end.Can be shaped at the end of the far-end of outer shaft and mate with the head of bone screw or engage.In an example, bone screw head can limit SANYE notched region, and the SANYE end be shaped accordingly of the outer shaft of bottle opener can insert in this SANYE notched region.This structure allows to make bone screw experience by the rotating torques of outer the tip of the axis when end engages with screw head.
Bottle opener also comprises interior axle or bar, and it extends through the central axis by the pipe of outer cylindrical axis limit.The far-end of this interior bar can comprise pin thread end.Opener handle limits opening, to expose thumb wheel or other controlling organization that dress is fixed in interior bar.Thumb wheel enables user keep handle to rotate independent of the rotation of outer shaft to make interior bar.Interior bar also can be configured to slidably reciprocate short distance in the pipe by outer axis limit, that is, slide along the longitudinal direction.When interior bar slides towards the far-end of outer shaft, the screw tip of the far-end of interior bar from be defined in bottle opener outer shaft SANYE end opening in the heart expose.When the thread head of interior bar exposes in like fashion, keep the user of bone screw that thumb wheel can be made to rotate to cause the screw tip of interior bar to engage with the corresponding thread spindle in the head being limited to screw and dress is fixed in it.Screw is moved on bottle opener by this action, and causes the SANYE end of outer shaft to join in the SANYE notched region of the head of screw.When fully engaged, screw fills rigidly and is fixed in bottle opener.Because screw attaches to bottle opener rigidly when engaging completely in like fashion, therefore screw can be screwed in GUSUIPIAN or bone medium, and bottle opener can be used as manipulator operation, realizes accurate placement and the reach of bone screw.
Another is characterised in that, the diameter of the outer shaft of bottle opener is similar to the diameter of the head of (in certain embodiments, being equal to or greater than) screw.This is allowed to screw and fills the screw be affixed on the end of bottle opener and is arranged by sleeve pipe, for inserting in the health of the patient of experience endoscopic procedure or other surgical procedure.
Another is characterised in that, bone screw head comprises screw dress and is fixed in concavity on the downside of its bone screw head on (side in the face of the screw head of material (such as, bone)).This concavity extends through the downside surface of screw head towards the axle of screw head from the external lower margin of screw head.This causes the screw head with external lower margin first contact when screw reverses and insert (that is, being screwed into) bone medium completely and fill the surface being fixed in GUSUIPIAN.This screw head design screw completely on be tightened in GUSUIPIAN time cause the less of bone material to break.
In another embodiment, bone screw comprises elongated member, and it has far-end, near-end and longitudinal axis.The having at least partially of far-end is suitable for making bone screw to be advanced to external screw thread in bone medium.Near-end has the power being configured to receive the torque applied and receives structure.Bone screw is tubulose, and wherein it limits along the path of the longitudinal axis of bone screw or inner chamber.The via dimensions limited is defined as bone screw is advanced along wire.The near-end of bone screw limits the female socket of tool.The socket limited and the via alignment of restriction.
Continue with this embodiment, bone screw bottle opener comprises the shaft portion being connected to handle portion.Shaft portion comprises outer shaft and interior axle.Interior axle is positioned in outer shaft.Interior reel structure becomes to rotate independent of outer shaft.The far-end of outer shaft has power transferring structure, and it is configured to, when receiving form touch with power, the transmission of torque applied to the power of bone screw is received structure.The far-end of interior axle has external screw thread, and it is suitable in the socket of the restriction being advanced to bone screw, and when making in the female thread of the socket being advanced to restriction, bone screw attaches to bone screw bottle opener securely via interior axle.This attachment makes capable transferring structure and power receive form touch.Handle portion comprises rotating mechanism, and it controls the rotation independent of axle in outer shaft.Bone screw bottle opener is tubulose, and wherein bone screw bottle opener limits path, and this path, along the longitudinal axis of bone screw bottle opener, makes bone screw bottle opener can advance along wire.
In addition, although each in features different herein, technology, structure etc. can be discussed at the diverse location of present disclosure, each being intended that in conception can independent of performing each other or with combination with one another.Therefore, the present invention can embody in many different ways and check.
Note, this summary of the invention part herein does not specify the of the present invention cumulative novel aspect of each embodiment and/or present disclosure or prescription.As an alternative, this summary of the invention provide only the different embodiment of the novelty being better than routine techniques and the preliminary discussion of corresponding point.For the present invention and embodiment additional detail and/or may viewpoint, reader concentrates energy in the detailed description of the invention part and corresponding accompanying drawing of present disclosure as further discussed below.
Accompanying drawing explanation
Aforementioned and other object, feature and advantage of the present invention are described clearly more specifically by from the following of preferred embodiment herein as shown in the drawings, and wherein similar Reference numeral represents same section throughout different views.Accompanying drawing need not in proportion, and wherein emphasis changes into being placed on and illustrates in embodiment, principle and conception.
Fig. 1 is according to the bone screw of embodiment herein and the exemplary perspective view of automatic fixing driver systems.
Fig. 2 A is the exemplary side elevation of the bone screw according to embodiment herein.
Fig. 2 B is the exemplary top perspective view of the bone screw according to embodiment herein.
Fig. 2 C is the exemplary face upwarding view of the bone screw according to embodiment herein.
Fig. 3 A is the exemplary perspective view of the handle portion of screwdriver according to embodiment herein.
Fig. 3 B is the exemplary perspective view with the end section of the screwdriver of axle in extension according to embodiment herein.
Fig. 3 C is the exemplary perspective view with the end section of the screwdriver of axle in contraction according to embodiment herein.
Fig. 4 A is the exemplary side elevation of the bone screw before engaging each other according to embodiment herein and screwdriver.
Fig. 4 B is according to the bone screw of embodiment herein and the exemplary side elevation of screwdriver of power transferring structure with joint.
Fig. 4 C is according to the bone screw of embodiment herein and has the exemplary side elevation that the power transferring structure of joint and dress are fixed in the screwdriver of axle in bone screw.
Fig. 5 is the exemplary perspective view of the handle portion of the automatic fixing driver systems of bone screw according to embodiment herein.
Fig. 6 is the exemplary side cross-sectional view of the handle portion of the automatic fixing driver systems of bone screw according to embodiment herein.
Fig. 7 is the exemplary decomposition diagram of the automatic fixing driver systems of bone screw according to embodiment herein.
Detailed description of the invention
Technology disclosed herein comprises novel bone screw and automatic fixing driver systems and method.Substantially, system comprises mechanism, and this mechanism enables bone screw attach to screwdriver rigidly, for GUSUIPIAN and graft being handled and are passed to fixed position, such as, at surgery.System comprises tubular bone screw, and it has the driving engaged with the drives structure of screwdriver and is connected.Bone screw also comprises structural connection, and it attaches to interior axle or the bar of screwdriver securely, or receives this interior axle or bar.The interior axle of screwdriver or bar can rotate independent of the outer shaft of screwdriver and slide.Therefore, the interior axle of screwdriver can be connected rigidly with bone screw, makes bone screw be connected contact with the driving of screwdriver, makes it possible to put on the transmission of torque of screwdriver to bone screw, and bone screw does not come off from driving connection.Making after bone screw is advanced in destination media, interior axle can be removed with bone screw and engage, and can remove engaging to make screwdriver with bone screw.Bone screw and screwdriver can be tubulose, to make it possible to slide along wire.
Fig. 1 shows the exemplary perspective view of bone screw and automatic fixing driver systems 100.This system comprises bone screw 200 and screwdriver 300.Bone screw 200 and screwdriver 300 comprise initiatively automatically fixing structure, and it by bone screw 200 firmly and be rigidly connected to the end of screwdriver 300.This firm attachment makes bone screw 200 can be driven in bone or other medium, and does not need bone screw 200 artificially to remain on the end of screwdriver 300.Initiatively automatically fixing structure can make bone screw 200 be completely or partially advanced in bone medium after discharge.
With reference to Fig. 1,2A, 2B and 2C, bone screw comprises elongated member, and it has far-end 205, near-end 210 and longitudinal axis 215.Elongated member is substantially cylindrical shape, but can use the shape shaft in other cross section.Attention, mentions far-end and near-end contributes to identifying the feature being positioned at roughly those positions or end.Far-end 205 there is external screw thread 220 at least partially, it is suitable for bone screw is advanced in bone medium.In certain embodiments, external screw thread 220 is extensible or substantially cover whole bone screw 200, and in other embodiments, external screw thread 220 covers an only part for elongated member or axle substantially.External screw thread geometry can based on specific use medium, or application-specific.
The head of near-end 210 or bone screw 200 has the power being configured to receive the torque applied and receives structure 230.Typically, the torque of applying will be passed to bone screw 200 from screwdriver 300.Power receives structure 230 can have various shape, size and structure.Fig. 2 B shows the power limiting notch 232 and receives structure 230.In this example, there are three in notch 232, it is substantially by the projection/structure qualification in the portions of proximal 210 of bone screw 200.In other embodiments, single notch or at least two notches can be there are.Note, substitute and limit notch, power reception structure can change into and the leaf of some is defined as notch feature, and for accepting screwdriver 300, such as, size and dimension is defined as three or more the leaves connected with the corresponding impeller structure of the outer shaft of screwdriver 300.In addition, power receives structure can be presented as that any pentagon, leaf or notch are arranged, comprises conventional driving geometry.In certain embodiments, it is cove design that power receives structure, and it has the shape of the power transferring structure corresponding to bone screw bottle opener.
Bone screw 200 is tubulose, and wherein bone screw 200 limits path 234 along longitudinal axis 215 or inner chamber.Path 234 size limited is defined as bone screw 200 can be advanced along wire (not shown).Wire is generally used for arthroscopic procedures.Typically, wire is placed in and treats and position that is close or increase fixture by surgeon.Wire contributes to guaranteeing that extraneous items or utensil safely and easily close to specific part, and can not depart from or divide tissue around.Therefore, the path of restriction is enough to be used in the length of wire through bone screw 200.
The near-end 210 of bone screw 200 limits the socket 236 with female thread 237.Note, for this exemplary embodiment, employ screw thread, but other embodiment can use snap-fittings, ball-and-socket mechanism etc.The socket 236 limited and the via alignment limited.Such as, the socket 236 of restriction can be concentric with the path limited, common longitudinal axis line.The socket limited also can utilize power to receive structure centering.In most embodiments, the socket of restriction can have the diameter being greater than path 234, but this is not required.Fig. 2 C shows concave surface 239, and it is essentially the bottom side of screw head.Utilize this type of curvature, first the outer rim of bone screw head contacted bone medium before closing on the surface of axle.
Referring now to Fig. 1,3A, 3B, 3C and 3D, bone screw bottle opener 300 comprises the shaft portion 305 being connected to handle portion 310.Shaft portion 305 comprises outer shaft 320 and interior axle 330.Interior axle 330 is positioned in outer shaft 320.Interior axle 330 is configured to rotate independent of outer shaft 320.Outer shaft 320 can be fixedly connected to handle portion 310.Therefore, outer axis limit longitudinal space or chamber, interior axle can rotate at this longitudinal space or intracavity and slide.The far-end 311 (bottle opener end) of outer shaft 320 has force transfer mechanism 325, and it is configured to the transmission of torque applied to the power of bone screw 200 be received structure 230 receiving when structure 230 contacts with power.The far-end 311 of interior axle 330 has the external screw thread 326 being suitable for being advanced in the restriction socket 236 of bone screw 200, make when being advanced in the female thread 237 limiting socket 236, bone screw 200 attaches to bone screw bottle opener 300 securely via interior axle 330, makes capable transferring structure 325 and power receive structure 230 and contacts.Handle portion 310 comprises rotating mechanism 312, and it controls the rotation independent of axle 330 in outer shaft 320.Rotating mechanism 312 can be swiveling wheel, lever or controls other manually operated mechanism of interior axle 330.Rotating mechanism can frame limiting or be limited to by handle portion 310 in the opening in handle portion 310.Rotating mechanism 312 also can utilize the window of handle portion 310 or restriction longitudinally to slide.Rotating mechanism 312 is slided in frame openings causes interior axle 330 longitudinally to advance in outer shaft 320.Amount of travel can be enough to be used in interior axle 330 and shrink in outer shaft 320, and extension comes to connect with the socket 236 limited.
Bone screw bottle opener 300 is configured to pass through the tubulose of its whole longitudinal axis by the path 344 limited along the longitudinal axis 315 of bone screw bottle opener 300, bone screw bottle opener 300 can be advanced along wire.In addition, automatic fixing structure be configured so that when bone screw 200 by bone screw bottle opener 300 firmly fixing time, system of connections (screw by bottle opener fixing) is still provided for the path that slides along wire and inner chamber (substantially along identical longitudinal axis through handle 310, interior axle 330 and bone screw 200).
Fig. 4 A-4C shows the development of the step for engaging initiatively fixing structure automatically.Fig. 4 A shows the side cross-sectional view of the end of the screwdriver 300 aimed at bone screw 200.In figure 4b, screwdriver 300 and/or bone screw 200 move, and receive structure contact with power transferring structure to exert all one's strength, but the interior axle do not extended.In figure 4 c, interior axle has been handled or has been moved forward, and engages with the female thread of the external screw thread with bone screw that make interior axle, thus relative to screwdriver fixing bone screw on one's own initiative.
In another embodiment, bone screw and automatic fixing driver systems can comprise compressing mechanism, axle in its far-end towards the outer shaft of bottle opener promotes.Compressing mechanism provides line pressure or power (directly or indirectly) essentially towards interior axle.Exist and can be used as the various mechanisms of compressing mechanism, comprise and be arranged on spring in the handle of bottle opener or band.Spring can be positioned in handle, makes spring by promoting or pulling interior axle to be promoted by the far-end of interior axle towards outer shaft.Screwdriver also can comprise interior axle relieving mechanism, and it makes it possible to axle in the removing of bone screw bottle opener.In some exemplary embodiments, interior axle relieving mechanism comprises end cap, and it removably engages with the near-end of handle portion.In this embodiment, compressing mechanism can comprise the spring being positioned at end cap.
Fig. 5-7 shows the exemplary embodiment of compressing mechanism and removable interior shaft assembly.Fig. 5 shows handle portion 310 and rotating mechanism 312, and end cap 375.Note, end cap 375 is defined for the inner chamber receiving wire.Handle portion also limits J-shaped pin groove 371, and end cap for receiving end cap 375, and remains in handle portion by it.Such as, end 375 can be inserted in handle portion, rotates a distance, and then end cap can be gone up jumping and engage with handle.
With reference to Fig. 6, compressing mechanism 370 shows in handle portion 310.Also show end cap 375, hexagonal bottle opener 373, plunger 377 and spring 376.Therefore, end cap 375 is defined for the position of spring 376 and plunger 377.When end cap insert and dress is solid or locking time, spring 376 then can via plunger 377 by bias voltage supply forward on interior axle.Plunger 377 is advanced together with spring, and therefore then can be pressed on rotating mechanism 312.Interior axle 330 can comprise hexagonal bottle opener connecting portion 373, and it can be made for giving interior axle by rotation energy or torque by rotating mechanism.Hexagonal bottle opener connecting portion 373 can be welded on interior axle or integrated with it.
Fig. 7 shows decomposition view, and shows new or clean interior axle 330 and can how to insert in screwdriver, follows by end cap 375 and adjoint spring 376 and plunger 377.Note, end cap 375 comprises the J-shaped pin 372 for removably locking with handle portion 310.When end cap 375 locks, wheel/rotating mechanism spin is made to cause interior axle rotate and engage securely.
Assume that this type of compressing mechanism is useful during use, such as, at surgery.When not having compressing mechanism, and when interior axle is slidably disposed in outer shaft, when bone screw contacts with screwdriver end, interior axle will be pushed back in outer shaft.Utilize this kind equipment, pressure forward must be placed on interior axle (rotatable take turns) by user simultaneously, and user uses wheel to rotate interior axle to engage the screw thread of interior axle simultaneously.Because interior axle floats substantially in outer shaft, and there is no pressure forward, therefore interior axle will rotate, but by the female thread of not zeugopodium screw.Therefore, compressing mechanism provides spring-biased, only needs interior axle is rotated, and do not provide pressure forward to make user.
For at least several reason, removable interior axle is provided to can be useful.In the application of some bone screw bottle openers, interior shaft size can have a diameter, and it is converted at least compared to the relatively short fatigue life of the fatigue life of outer shaft.Additional benefit is easy cleaning.At surgery, blood and fluid can be advanced between outer shaft and interior axle.When these two axles have relatively compact tolerance, then difficulty is become to screwdriver unit clean and sterilization.But, there is removable interior axle and make assembly clean and/or replacement relatively easily, and make it possible to use disposable interior axle.
Other embodiment comprises the method using bone screw bottle opener bone screw to be anchored on bone medium.The method comprises bone screw removably to fill and is fixed in bone screw bottle opener.This bone screw comprises elongated member, and it has far-end, near-end and longitudinal axis.The having at least partially of far-end is suitable for making bone screw to be advanced to external screw thread in bone medium.Near-end has the power being configured to receive the torque applied and receives structure.Bone screw is tubulose by the path limited along longitudinal axis.The via dimensions limited is defined as bone screw is advanced along wire, such as, and surgical operation wire.Near-end limits the female socket of tool.The socket limited and the via alignment of restriction.Bone screw bottle opener comprises the shaft portion being connected to handle portion.Shaft portion comprises outer shaft and interior axle.Interior axle is positioned in outer shaft.Interior reel structure becomes to rotate independent of outer shaft.The far-end of outer shaft has power transferring structure, and it is configured to, when receiving form touch with power, the transmission of torque applied to the power of bone screw is received structure.The far-end of interior axle has the external screw thread in the socket of the restriction being suitable for being advanced to bone screw, and when making in the female thread of the socket being advanced to restriction, bone screw attaches to bone screw bottle opener securely via interior axle, makes capable transferring structure and power receive form touch.Handle portion comprises rotating mechanism, and it controls the rotation independent of axle in outer shaft.Bone screw bottle opener is tubulose, and wherein bone screw bottle opener limits path or inner chamber or pipe, and this path or inner chamber or pipe, along the longitudinal axis of bone screw bottle opener, make bone screw bottle opener can advance along wire.Then, the method comprises and is fixed in bone screw bottle opener by making interior axle rotate to engage with the restriction socket of bone screw bone screw removably to fill.Bone screw is removably filled the automatic fixing structure of other active being fixed in bone screw bottle opener and can relate to use ball-and-socket mechanism or other active holding apparatus.
The method comprises the bone screw that makes dress solid and bone screw bottle opener passes through along surgical operation wire, bone screw is advanced in bone medium or other medium/tissue, and then engages axle in bone screw release by rotating interior axle or otherwise making initiatively fixing structure remove.
Another embodiment comprises bone screw, and fixing driver systems comprises bone screw and bone screw bottle opener automatically.Bone screw has elongated member, and it has far-end, near-end and longitudinal axis, and wherein having at least partially of far-end is suitable for making bone screw to be advanced to external screw thread in bone medium.Near-end has the power being configured to receive the torque applied and receives structure.Bone screw is tubulose, and wherein bone screw limits the path along longitudinal axis.The via dimensions limited is defined as bone screw is moved forward along wire.Near-end limits socket, and it is solid that this socket structure becomes to utilize bottle opener Zhuan Gu mechanism to fill.The socket limited and the via alignment of restriction.
Bone screw bottle opener has the shaft portion being connected to handle portion.Shaft portion comprises outer shaft and interior axle.Interior axle is positioned in outer shaft.Interior reel structure becomes to rotate independent of outer shaft.The far-end of outer shaft has power transferring structure, and it is configured to, when receiving form touch with power, the transmission of torque applied to the power of bone screw is received structure.The far-end of interior axle has bottle opener Zhuan Gu mechanism, and interior axle dress is fixed in the restriction socket of bone screw by it, makes capable transferring structure and power receive form touch.Handle portion comprises rotating mechanism, and it controls the rotation independent of axle in outer shaft.Bone screw bottle opener is tubulose, and wherein it limits path, and this path, along the longitudinal axis of bone screw bottle opener, makes bone screw bottle opener can advance along wire.
Those skilled in the art also will understand, and can there are many modification of making the manipulation of the technology explained above, still realize identical object of the present invention simultaneously.This type of modification is intended to be covered by scope of the present invention.Thus, the above description of embodiments of the invention is not intended to for restrictive.On the contrary, any restriction of embodiments of the invention is present in following claim.

Claims (20)

1. bone screw and an automatic fixing driver systems, comprising:
Bone screw, described bone screw comprises:
Elongated member, it has far-end, near-end and longitudinal axis, the having at least partially of described far-end is suitable for making described bone screw to be advanced to external screw thread in bone medium, described near-end has the power being configured to receive the torque applied and receives structure, described bone screw is tubulose by the path limited along described longitudinal axis, the via dimensions of described restriction is defined as described bone screw is advanced along wire, described near-end limits the female socket of tool, the socket of described restriction and the via alignment of described restriction; And
Bone screw bottle opener, described bone screw bottle opener comprises:
Be connected to the shaft portion of handle portion, described shaft portion comprises outer shaft and interior axle, described interior axle is positioned in described outer shaft, described interior reel structure becomes to rotate independent of described outer shaft, the far-end of described outer shaft has power transferring structure, described power transferring structure is configured to, when receiving form touch with described power, the transmission of torque applied to the power of described bone screw is received structure, the far-end of described interior axle has and is suitable for being advanced to the external screw thread in the restriction socket of described bone screw, when making in the female thread of the socket being advanced to described restriction, described bone screw attaches to described bone screw bottle opener securely via described interior axle, described power transferring structure and described power is made to receive form touch, described handle portion comprises rotating mechanism, described rotating mechanism controls the rotation independent of the described interior axle of described outer shaft, described bone screw bottle opener is tubulose by the path limited along the longitudinal axis of described bone screw bottle opener, described bone screw bottle opener can be advanced along wire.
2. bone screw according to claim 1 and automatic fixing driver systems, is characterized in that, described rotating mechanism frame is being limited in the opening in described handle portion.
3. bone screw according to claim 2 and automatic fixing driver systems, is characterized in that, described rotating mechanism is that be configured to utilize manual control to rotate rotatable is taken turns.
4. bone screw according to claim 2 and automatic fixing driver systems, is characterized in that, described rotating mechanism is configured to longitudinally slide in described handle, causes described interior axle longitudinally to advance in described outer shaft.
5. bone screw according to claim 1 and automatic fixing driver systems, is characterized in that, the power of described bone screw receives structure and comprises at least three leaves, and it receives the impeller structure from the correspondence of the power transferring structure of described bone screw bottle opener.
6. bone screw according to claim 1 and automatic fixing driver systems, is characterized in that, the power of described bone screw receives structure and comprises at least two notches, and it receives the counter structure from the power transferring structure of described bone screw bottle opener.
7. bone screw according to claim 1 and automatic fixing driver systems, is characterized in that, the power of described bone screw receives structure and comprises notch configuration, and it has the shape of the power transferring structure corresponding to described bone screw bottle opener.
8. bone screw according to claim 1 and automatic fixing driver systems, it is characterized in that, described bone screw bottle opener for tubulose comprises the described interior axle of tubulose and the described handle portion of tubulose, makes the path of described restriction along the same axis through described handle and described interior axle.
9. bone screw according to claim 1 and automatic fixing driver systems, is characterized in that, the recess of described restriction utilizes the power of described bone screw to receive structure centering.
10. bone screw according to claim 9 and automatic fixing driver systems, is characterized in that, the socket of the restriction of described bone screw and the via alignment of restriction are to have the axis identical with the longitudinal axis of described bone screw.
11. bone screw according to claim 1 and automatic fixing driver systems, is characterized in that, the longitudinal space that in described in described outer axis limit, axle within it rotates.
12. bone screw according to claim 1 and automatic fixing driver systems, is characterized in that, described bone screw bottle opener also comprises:
Compressing mechanism, its far-end towards described outer shaft promotes described interior axle.
13. bone screw according to claim 12 and automatic fixing driver systems, it is characterized in that, described compressing mechanism comprises the spring be arranged in described handle, and described spring promotes described interior axle towards the far-end of described outer shaft.
14. bone screw according to claim 1 and automatic fixing driver systems, is characterized in that, described bone screw bottle opener also comprises interior axle relieving mechanism, and it makes it possible to from the described interior axle of bone screw bottle opener removing.
15. bone screw according to claim 14 and automatic fixing driver systems, is characterized in that, described bone screw bottle opener also comprises:
Compressing mechanism, its far-end towards described outer shaft promotes described interior axle.
16. bone screw according to claim 15 and automatic fixing driver systems, it is characterized in that, described interior axle relieving mechanism comprises end cap, and it removably engages with the near-end of described handle portion, and wherein said compressing mechanism comprises the spring being positioned at described end cap.
17. 1 kinds of methods using bone screw bottle opener bone screw to be anchored on bone medium, described method comprises:
Bone screw is removably filled and is fixed in bone screw bottle opener, described bone screw comprises elongated member, it has far-end, near-end and longitudinal axis, the having at least partially of described far-end is suitable for making described bone screw to be advanced to external screw thread in bone medium, described near-end has the power being configured to receive the torque applied and receives structure, described bone screw is tubulose by the path limited along described longitudinal axis, the via dimensions of described restriction is defined as described bone screw is advanced along wire, described near-end limits the female socket of tool, the socket of described restriction and the via alignment of described restriction, described bone screw bottle opener comprises the shaft portion being connected to handle portion, described shaft portion comprises outer shaft and interior axle, described interior axle is positioned in described outer shaft, described interior reel structure becomes to rotate independent of described outer shaft, the far-end of described outer shaft has power transferring structure, it is configured to, when receiving form touch with described power, the transmission of torque applied to the power of described bone screw is received structure, the far-end of described interior axle has the external screw thread in the socket being suitable for the restriction being advanced to described bone screw, when making in the female thread of the socket being advanced to described restriction, described bone screw attaches to described bone screw bottle opener securely via described interior axle, described power transferring structure and described power is made to receive form touch, described handle portion comprises the rotating mechanism controlled independent of the rotation of the described interior axle of described outer shaft, described bone screw bottle opener is tubulose by the path limited along the longitudinal axis of described bone screw bottle opener, described bone screw bottle opener can be advanced along wire, described bone screw is removably filled and is fixed in described bone screw bottle opener and comprises described interior axle is rotated to engage with the restriction socket of described bone screw,
The bone screw making described dress solid and bone screw bottle opener pass through along surgical operation wire;
Described bone screw is made to be advanced in bone medium; And
Come from the described interior axle of described bone screw release by rotating described interior axle.
18. 1 kinds of bone screw and automatic fixing driver systems, comprising:
Bone screw, described bone screw comprises:
Elongated member, it has far-end, near-end and longitudinal axis, the having at least partially of described far-end is suitable for making described bone screw to be advanced to external screw thread in bone medium, described near-end has the power being configured to receive the torque applied and receives structure, described bone screw is tubulose by the path limited along described longitudinal axis, the via dimensions of described restriction is defined as described bone screw is advanced along wire, described near-end limits and is configured to utilize bottle opener Zhuan Gu mechanism to fill solid socket, the socket of described restriction and the via alignment of described restriction; And
Bone screw bottle opener, described bone screw bottle opener comprises:
Be connected to the shaft portion of handle portion, described shaft portion comprises outer shaft and interior axle, described interior axle is positioned in described outer shaft, described interior reel structure becomes to rotate independent of described outer shaft, the far-end of described outer shaft has power transferring structure, it is configured to, when receiving form touch with described power, the transmission of torque applied to the power of described bone screw is received structure, the far-end of described interior axle has bottle opener Zhuan Gu mechanism, described interior axle dress is fixed in the socket of the restriction of described bone screw by it, described power transferring structure and described power is made to receive form touch, described handle portion comprises rotating mechanism, it controls the rotation independent of the described interior axle of described outer shaft, described bone screw bottle opener is tubulose by the path limited along the longitudinal axis of described bone screw bottle opener, described bone screw bottle opener can be advanced along wire.
19. bone screw according to claim 18 and automatic fixing driver systems, is characterized in that, described bone screw bottle opener also comprises:
Compressing mechanism, its far-end towards described outer shaft promotes described interior axle.
20. bone screw according to claim 19 and automatic fixing driver systems, is characterized in that, described bone screw bottle opener also comprises interior axle relieving mechanism, and it makes it possible to from the described interior axle of bone screw bottle opener removing.
CN201380018832.XA 2012-04-04 2013-04-02 Bone screws and bottle opener is held automatically Active CN105050518B (en)

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US13/439,099 US9387025B2 (en) 2012-04-04 2012-04-04 Bone screw and self-retaining driver
PCT/US2013/034984 WO2013152021A1 (en) 2012-04-04 2013-04-02 Bone screw and self-retaining driver

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EP2833813B1 (en) 2018-06-13
KR20160097395A (en) 2016-08-18
JP2015513979A (en) 2015-05-18
AU2013243571A1 (en) 2014-10-02
WO2013152021A1 (en) 2013-10-10
CN105050518B (en) 2018-10-02
US10292744B2 (en) 2019-05-21
US9387025B2 (en) 2016-07-12
RU2014140235A (en) 2016-05-27
US20160235457A1 (en) 2016-08-18
ZA201406754B (en) 2017-09-27
US20130268010A1 (en) 2013-10-10

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